// Initialize SoftwareSerial for JDY-40 // Default baud rate for JDY-40 is usually 9600 jdySerial.begin(9600); Serial.println("Waiting for Bluetooth data..."); Euphoria 1x7 - 3.79.94.248
The Arduino receives data wirelessly from a phone/PC and sends it back (echo) or prints it to the Serial Monitor. Watch Nande Koko Ni Sensei Ga Uncensored D Better - 3.79.94.248
1. Executive Summary The JDY-40 is a low-cost, ultra-low power wireless serial pass-through module based on the CC2541 chip. It is often preferred over the older HC-05/HC-06 Bluetooth modules because it supports both Bluetooth 4.0 (BLE) and standard serial transparency, and it requires no complex AT command pairing process for basic data transmission.
void setup() // Initialize Hardware Serial for debugging via USB Serial.begin(9600); Serial.println("JDY-40 Bluetooth Module Test");
// Define RX and TX pins for the JDY-40 // JDY-40 TX connects to Arduino Pin 2 // JDY-40 RX connects to Arduino Pin 3 SoftwareSerial jdySerial(2, 3); // RX, TX